Support Windows-hosted Bazel builds with Linux remote execution - #30121
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This was referenced Jul 3, 2026
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…t windows building (bazel-contrib#3890) The legacy self-executable zip action invokes `cat` through `run_shell`. The action does not declare `cat`, and a Windows-hosted Bazel invocation cannot use that action reliably when the selected execution platform is Linux. Run the existing `exe_zip_maker` through `actions_run` instead. This selects the helper and Python runtime from the execution configuration, preserves the prelude-plus-zip output format, and removes the ambient shell utility dependency. A news entry documents the fix. The Bazel integration that motivated this fix is [bazelbuild/bazel#30121](bazelbuild/bazel#30121). --------- Co-authored-by: Richard Levasseur <richardlev@gmail.com>
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…t windows building (#3890) The legacy self-executable zip action invokes `cat` through `run_shell`. The action does not declare `cat`, and a Windows-hosted Bazel invocation cannot use that action reliably when the selected execution platform is Linux. Run the existing `exe_zip_maker` through `actions_run` instead. This selects the helper and Python runtime from the execution configuration, preserves the prelude-plus-zip output format, and removes the ambient shell utility dependency. A news entry documents the fix. The Bazel integration that motivated this fix is [bazelbuild/bazel#30121](bazelbuild/bazel#30121). --------- Co-authored-by: Richard Levasseur <richardlev@gmail.com> (cherry picked from commit 1d99f70) Work towards #3867
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## Summary Replace the `builtins_bzl.zip` shell `genrule` with a dedicated `builtins_zip` Starlark rule. This focused change is extracted from [#30121](#30121) for independent review. ## Motivation The existing `genrule` discovers its source root with shell commands and invokes `zip_builtins.sh`, which depends on shell path handling. `builtins_zip` declares the zipper tool and source inputs directly, preserving the `builtins_bzl/<relative path>` archive layout without shell path handling. ## Build API Changes No. ## Validation - `buildifier -mode=check src/main/starlark/builtins_bzl/BUILD src/builtins_zip.bzl` - `bazel build --jobs=2 //src/main/starlark/builtins_bzl:builtins_bzl_zip` - compared `unzip -Z1` output to the sorted `**/*.bzl` source list; entries matched exactly - `bazel aquery` confirmed `_zipper` is an execution-configured declared tool and all archive mappings are correct ## Release Notes RELNOTES: None Closes #30123. PiperOrigin-RevId: 945822546 Change-Id: I493f53dcd6422cb52300cb859d92c1d498534b41
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Summary
Motivation
A Bazel invocation hosted on Windows could select Linux remote execution but still pass Windows host paths to actions, launch Unix scripts as Windows executables, or depend on undeclared Unix utilities. These failures prevented
//src:bazelfrom building reliably and broke automatic XML generation for remotely executed shell tests that did not writejunit.xml.Build API Changes
No.
Validation
git diff --check origin/master...HEADpython3 -m json.tool MODULE.bazel.lockpython3 -m json.tool maven_install.jsonwindows-remote-exec.ymlworkflow exercises the original Windows-host/Linux-execution failure mode in CIThe
rules_pythonexecutable-zip fix is also proposed upstream inbazel-contrib/rules_python#3890.
Release Notes
RELNOTES: None